Find the LCD for the fractions in the list.
, 
, 
A. (k - 4)(k + 6)(k - 9)(k + 3)
B. (k - 4)(k + 6)3(k - 9)(k + 3)
C. (k - 4)(k - 9)(k + 3)
D. (k - 4)(k + 6)(k - 9)
Answer: A
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Build a variable expression for the given phrase.Eight divided by a number
A. 
B. 
C. 
D. 8 - x
Solve the problem.Economists use what is called a Leffer curve to predict the government revenue for tax rates from 0% to 100%. Economists agree that the end points of the curve generate 0 revenue, but disagree on the tax rate that produces the maximum revenue. Suppose an economist produces this rational function 
where R is revenue in millions at a tax rate of x percent. Use a graphing calculator to graph the function. What tax rate produces the maximum revenue? What is the maximum revenue?
A. 35.8%; $209 million B. 34.9%; $207 million C. 37.5%; $210 million D. 39.6%; $209 million
Evaluate the algebraic expression 
when 
and 
.
A. 
B. 
C. 
D. 
E. 
Find the absolute value.|-17|
A. -17 B. 0 C. 17 D. 34